I have a site that uses the BANS (Build a Niche Store) platform for selling a niche of products on ebay. It has been up for about a little over a year.

It currently ranks #1 in Yahoo, but nowhere to be found in Google. Even so, I get a small commission on the sales at ebay. But that's the reason why I want to move away from ebay and use Amazon's inventory instead (better commission).

To make the switch to Amazon products, I have to gut the whole thing and use WordPress using the ReviewAZON plugin. What worries me is the possibility of losing my ranking and not getting it back... at least in Yahoo.

I'm looking for advice on how best to approach this to at least minimize the impact I'm likely to face. I know there's no guarantee, but I'd rather make the leap for the possibility of better commissions than to stay with ebay (their affiliate program is really going downhill).

I have a few other sites using BANS that I plan on converting to Amazon as well, so I want to prepare myself by thinking this through.

Any help is most appreciated!